NEET Exam Model Paper 10

Inductance of a coil is numerically equal to the emf induce din the coil when the current in the coil changes at the rate of 1 As−1.
If I is the current flowing in the circuit, then flux linked with the circuit is observed to be proportional to I, i.e.,
ϕ∝I
or ϕ=LI.....(i)
Where L is called the self – inductance or coefficient of self-inductance or simply inductance of the coil.
Net flux through solenoid,
ϕ=500×4×10−3=2Wb
or 2=L×2 [after putting values in Eq.(i)]
or L=1H